My organic lemon basil is infested with these worms which build a cocoon in the basil leaves, eat the leaves and leave black droppings. Is this an immature horn worm (that have destoyed my tomato plants)? How do they get in the plant? How does a gardener control them other than cutting off the leaves? Any natural predators?

This! This has been terrorizing my tomato plants! I’m going to attempt using a product as suggested by Henry, but was there any verdict on what these things are? I’ve been scouring the internet, and this is the closest I’ve come to spotting what I’ve been plagued with.

I got exactly this in my tomato plans. Everyday i kill about 2-8 of them by Hand. I’m not a friend of pesticide. But how is it possible that there come everyday again? There are small ones, big ones. So there not growing up in the plant they came from somewhere. But would be nice to know if there is some information about this worm.